Home / 48,228.30-72,318.15-28,512.90

Finding the Fourth Proportional to 48,228.30, 72,318.15 and 28,512.90

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Solution

The fourth proportional to 48,228.30, 72,318.15 and 28,512.90 is: 42,754.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    48,228.30 : 72,318.15 = 28,512.90 : x
  2. Step 2: Convert to fraction form
    48,228.30/72,318.15 = 28,512.90/x
  3. Step 3: Cross multiply
    48,228.30x = 72,318.15 × 28,512.90
  4. Step 4: Simplify right side
    48,228.30x = 2,062,000,179.14
  5. Step 5: Solve for x
    x = 2,062,000,179.14/48,228.30
  6. Step 6: Final answer
    x = 42,754.98

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.